Improvement in machines -fob cleaninqcast-iron p



yTo LZLwhontitmay concern."

' lation of the'devices. herei t UNITED STATES PATENT y wvILL'rAM sMirmfoFALnnGnEnr brrr, PENNSYLVANIA@ IMPROVEMENT IN 'MACH[assises.CLEANING QASTgiIRQNQr-IPE-:

` Be itknow-n aanwas-IAM SMITH, Orknegheny City, in the county-of Allegheny and. State of Pennsylvania, .have inventedA certain-V new and useful Improvements in Machines for Cleaning Cast-Iron Pipe; and I dohereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and' tothe letters ,of reference marked thereon, whichfform a l part of this specification.

Inthe Vaccompanying drawings, 'Figure'1,

Sheet 1, is afront elevation of my i111'p'rove-` mentsincleaning cast-iron pipe; Fig. 2, Sheet 2, a side elevation thereof 5 FiguBMSheet 3, a

vertical section of the same.lf' Figsfng and'5, show separate views' of some lof g the ,devices Like letters of referenceon the 'different fngures-de'note `cjorrespondin'g parts; A. l Asheretfore, the core-sandhasbeen cleaned fromcast-iron pipe after the process of casting. v Manuallaborhas been employed, and handj .tools, consisting of .long Scrapers, have been used, making v the operation', tedious and'ex-V pensive. l

Y. The nature of my invention consists inthe construction and arrangement of devices hereinafter more fully described.

To enable others skilled in the art to make and use my devices I will .describetheir construction and operation. Y

A frame-work, A, .of sufitableconstruction,

...supports and, carries the devices used, atthe base of which, `and aiixed in suitable .bearings, A', is a clamping-plate,A2, of suitable construction, having anges A3 atv two of its ends, which are cut out with perforations A4,

ofthe diameter-,or thereabout, of the' pipes to be cleaned. `Clamps A5 'are' attached tothe p aforen'amed flanges in such a manner that they will embrace'and hold in position a plate, A", having peri'orations oppositeA to and equal the -pe'i'forations A4 of the iianges A3, the whole being so arranged that pipes of ordinary con- 4struction can be placed in the before-named clamping-plate, and, being-heldl tightfbyv means of the clamps A5 ina horizontal posi'- tion, may be moved around and upwardinto vertical position, v'andbe radyforthemanipus 4 Aixed to a suitable 'bed-'plte,` B,whichiisau tachedin anysuitable'way tothe beforefnamed naftr' described.

having steamfpassages B?, pistcn B3, and steamchest B4, attached 'in any' suitable manner to' the said piston B3, and sliding in suit'able'gnides, C, running in line, and below the said cylinder B is across-head, C', of any suitable construction, atthe extremities ofwhich--one t'o each-fare axed radius-arms C2, a slot, C, in each of them encircling a pin of suitable shapeaf- -xed to the before-named'cross-head C. .The lower extremities of before-named radius-'arms `G2 arev attached lto and vibrate .from acrossbeam, C, of suitable construction, about mid- ;wayof whichfis-afxed, by means of an eccentric orsuch like device, anordinary'valvet rod, O", attached to a valve of ordinary con# 1 struction'in the steam-chestB, on theside of Y and E2, attached to the frame A. The cross-y lhead C is, furthermore, provided at or near its extremities, in any. suitable manner, with two or more shafts, Fand F2, running downward, the line of their axis being parallel with the axis of the cylinderf.v The extremities" of these rodsF and F2 are provided with three or more springs, G Gr2 G3, of acnrvilinear outline, attached to said shafts .by means of setscrews, or co1lar's,'or such like devices. The v saidjsprings G Grz Gr3 are provided, in the broadest part of their outline,with tools R R2 Rs-one to veach-#being of any suitable construction, but having a cutting-edge'at their `lower end, and affixed by clamps, wedges, or

screws, or any suitable devices.

' The mode of operating with my-devices is'as "'follows', viz: Pipe being placed in the clamping-plate A2, 'and being heldin a horizontal position and kept tight by reason of the clamps ,A5, `the clamping-plate A2 is turned up in such L'a manner that thepipes are kept in a vertical position, and arennderneath and central with the shafts-F F2. v`Steam lbeingadmitted into the cylinder B and at-the upper portion `of the piston B3 in the 'ordinary manner, it presses down the piston,a'nd at the same time and by- ;the same operation the cross-head C is forced are nnclamped and down, carrying ywith"itythefrods orshafts F pipe; VIf there be any excrescence of iron contained in the pipe, the springs G G2 Gr3 press inward and ypass the saine, allowing the tools R R? R3 only to Aforce through the sand. The

.operation being completed, steam isadmitted to the under side yof the pistonB, 'and forces upward the cross-head C', carrying with it the rods F F2 and their'attachments. The'pipes others pnt in theirplace.

Steam, water, or atmospheric pressnrecan be used as a motor to my devices. v v

My devices are applicable whethery they be placed in a vertical, a horizontal, or in an inclined position.

iron, casting them inwhat istermed a chil1.

Having thus described the nature, construction, and operation of my Aimprovement in cleaning cast-iron. pipe, what I claim as new,

andl desire to secure by Letters Patent, ifs- The herein-described machine, composed of the frame A, clamping-plate A2, tools vIR R2 B3,

springs G G2 lGr, and shaft F F2, in combination with its operative mechanism, substantially as described.

In testimony that I claim the foregoing as my own Iaffix my signature inlpresence of two witnesses. i j

` y W'lLLIAM SMITH;

hVitnesses:

PERCEVAL BECKETT, 

